Traditional RF Splitter/Combiner and Directional Coupler User Manual Content Page INTRODUCTION... 1 Revision History... 2 Trademark Information... 2 Admonishments... 2 General Safety Precaution... 2 1 GENERAL... 2 2 PRODUCT DESCRIPTION... 3 2.1 Functional Description... 4 2.2 Physical Description... 5 2.3 Technical Description... 6 3 INSTALLATION...14 3.1 Mount Panel or Chassis...14 3.2 Cabling...15 4 CUSTOMER INFORMATION AND ASSISTANCE...17 INTRODUCTION This manual describes the features, functions, and installation procedures for the ADC Traditional RF Splitter/Combiner and Directional Coupler. 1166881 Rev A Page 1
Revision History ISSUE DATE REASON FOR CHANGE Issue 1 03/96 Original Issue 2 05/99 Updated technical specifications and revised manual to current format style. Issue 3 08/99 Updated technical specifications Issue 4 04/01 Add DC16 coupler specifications Trademark Information ADC is a registered trademark of ADC Telecommunications, Inc. Admonishments Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment. An admonishment identifies a possible hazard and then explains what may happen if the hazard is not avoided. The admonishments in the form of Dangers, Warnings, and Cautions must be followed at all times. These warnings are flagged by use of the triangular alert icon (seen below), and are listed in descending order of severity of injury or damage and likelihood of occurrence. Danger: Danger is used to indicate the presence of a hazard that will cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Warning: Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Caution: Caution is used to indicate the presence of a hazard that will or can cause minor personal injury or property damage if the hazard is not avoided. General Safety Precaution Warning: Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the hazard is not avoided. 1 GENERAL This user manual describes the features, functions, and installation procedures for the ADC RF Splitter/Combiner and Directional Coupler. The terms universal panel and chassis are used throughout this manual. The universal panel accommodates 2 1, 4 1, and 8 1 Splitter/Combiner and Directional Coupler modules. The chassis is a stand-alone unit that accommodates a 16 x 1 splitter/combiner. Page 2
The universal panel accommodates 2 1, 4 1, 8 x 1, or directional coupler modules, and can be any desired combination. The universal panel does not accommodate the 16 x 1 splitter/combiner. All panels and the 16 x 1 Splitter/ Combiner chassis mount in 19-inch equipment racks or in 23-inch equipment racks with extender brackets (ordered separately). 2 PRODUCT DESCRIPTION This section provides functional, physical, and technical descriptions of the RF Splitters/Combiners. A typical network employing the RF broadband (5-1000 ) splitter/combiner is shown in Figure 1. FROM VIDEO BACKBONE NETWORK VIDEO TRANSPORT SYSTEM #1 #1 #16 MODULATOR/ UP CONVERTER #1 1 X 16 COMBINER #1 #1 #2 #3 #4 #5 #6 #7 #8 1 X 8 COMBINER #8 VIDEO TRANSPORT SYSTEM #128 #113 #128 MODULATOR/ UP CONVERTER #8 1 X 16 COMBINER #1 1 X 8 SPLITTER VIDEO FIBER OPTIC TRANSMITTER #1 #1 1 X 8 SPLITTER TO SUBSCRIBER NODES LEGEND #8 #64 = VJ2000 TEST POINTS 1 X 8 SPLITTER #64 VIDEO FIBER OPTIC TRANSMITTER = AVIS TEST POINTS TYPICAL HEADEND/DISTRIBUTION OFFICE TEST JACK ARRANGEMENT 7925-A Figure 1. Typical Equipment Arrangement, RF Broadband (5 1000 ) Modules Page 3
POWER PASSING PORT (PRIMARY) SATELLITE RECEIVER TO VIDEO MATRIX SWITCH OR MODULATOR 1 X 4 SATELLITE RECEIVER SATELLITE RECEIVER SATELLITE RECEIVER TO VIDEO MATRIX SWITCH OR MODULATOR TO VIDEO MATRIX SWITCH OR MODULATOR TO VIDEO MATRIX SWITCH OR MODULATOR POWER PASSING PORT (SECONDARY) 12815-B Figure 2. 4:1 Satellite (950-2150 ) Splitter 2.1 Functional Description The splitter/combiner is a 75-ohm passive device designed to operate in 5 to 1 GHz or 950 to 2150 (satellite) bandwidth applications. The unit provides excellent return loss, signal isolation, and insertion loss. The splitter/ combiner is capable of splitting RF signals or combining RF signals. The splitting function takes one signal input and divides it two, four, or eight ways. The combining function performs the opposite task by combining two, four, or eight signals into one output. The circuit schematic of the various splitter/combiners is shown in Figure 3. S S S S IN OUT TAP 8,12, 16 OR 20 db 1 2 2 PORT 1 2 3 4 4 PORT 1 2 3 4 5 6 7 8 8 PORT 1 2 3 4 13 14 15 16 16 PORT DIRECTIONAL COUPLER 6587-B Figure 3. Splitter/Combiner and Directional Coupler Schematic The directional coupler is a three terminal device consisting of an input, output, and tap. The coupler is designed to provide a specific signal level (8, 12, 16, or 20 db) at the tap with respect to the input signal level. Page 4
2.2 Physical Description Each panel and chassis is 1.75 inches (4.5 cm) high and mounts in either a 19- or 23-inch (48.3 or 58.4 cm) equipment rack. A cable tie bar is located at the rear of the chassis. There are 75 ohm F- or BNC-type connectors mounted on the rear of the modules or chassis that provide the interface for coaxial connections to network elements (NE). The splitter/ combiner and directional coupler modules are designed for use in the universal panel. The universal panel can support a mixed compliment of splitter/ combiners and directional couplers. The directional coupler occupies the same space as the 2 1 splitter/combiner. Table 1 shows some of the possible universal panel equipment arrangements. Table 1. Universal Panel Possible Equipment Arrangements 2 X 1 4 X 1 8 X 1 6 0 0 5 0 0 4 1 0 3 2 0 3 0 1 2 0 1 1 3 0 1 1 1 REAR VIEW 1:2 SPLITTER/ COMBINER or DIRECTIONAL COUPLER 1:8 SPLITTER/ COMBINER 1:4 SPLITTER/ COMBINER Figure 4. Universal Panel Mounting Space Required Per Module 7918-A 2.2.1 Cable The type of equipment cable used is dependent upon service or bandwidth of the associated equipment. All cables should be 75 ohm coaxial with tinned copper shield. Two recommended coaxial cable types are 9100 and HEC-2 or their equivalents. The recommended maximum length of cable between network elements is shown in Table 2. Cables are available with connectors pre-terminated on one end, with the other end field-connected using the appropriate connector for the network element interface. This method provides exact lengths and minimizes cable storage congestion. If the use of pre-terminated cables is not desired, connector kits with installation procedures for field termination are available from ADC Telecommunications. Page 5
Table 2. Recommended Cable and Maximum Length Between Network Elements CABLE TYPE BANDWIDTH MAXIMUM CABLE LENGTH 9100 1 50 200 feet (61.0 meters) HEC-2 or equivalent 50 750 200 feet (61.0 meters) HEC-2 or equivalent 750 1 GHz 100 feet (30.5 meters) 2.3 Technical Description Technical specifications for splitter/combiners and directional couplers are listed in Tables 3 through 16. The specifications reflect a 75-ohm environment. Table 3. Specifications for 16-Way Splitter/Combiner-SC1016, SC1016-B TYPICAL Insertion Loss 16 Way 14.9 15.4 15.6 15.8 db Return Loss, Ports 1-16 18 18 18 18 db Return Loss, S Ports 14 14 14 14 db Isolation Adjacent Ports 22 21 21 21 db Table 4. Specifications for 16-Way Splitter/Combiner-SC1016, SC1016-B MINIMUM AND MAXIMUM Insertion Loss 16 Way 16 16.5 db Return Loss, Ports 1-16 15 15 db Return Loss, S Ports 10 10 db Isolation Adjacent Ports 20 20 db Page 6
Table 5. Specifications for 8-Way Splitter/Combiner-SC2-SC1008MD, SC2-SC1008MD-B 5-10 10-50 TYPICAL Insertion Loss 8 Way 9.8 9.8 10.3 10.9 11.35 11.85 db Return Loss Ports 1-8 25 30 28 28 25 27 db Return Loss, S Ports 18 20 25 22 20 18 db Isolation Adjacent Ports 35 37 25 27 25 23 db EMI 120 120 120 120 120 120 db Table 6. Specifications for 8-Way Splitter/Combiner-SC2-SC1008MD, SC2-SC1008MD-B 5-10 10-50 MINIMUM AND MAXIMUM Insertion Loss 8 Way 10.55 10.56 11.55 12.05 12.55 13 db Return Loss Ports 1-8 16 17 17 17 16 16 db Return Loss, S Ports 16 17 17 17 16 15 db Isolation Adjacent Ports 27 20 20 20 20 19 db EMI 110 110 110 110 110 110 db Table 7. Specifications for 4-Way Splitter/Combiner-SC2-SC1004MD, SC2-SC1004MD-B 5-10 10-50 TYPICAL Insertion Loss 4 Way 6.5 6.5 6.8 7.2 7.45 7.8 db Return Loss Ports 1-4 22 26 26 28 25 24 db Return Loss, S Ports 20 25 23 21 22 22 db Isolation Adjacent Ports 35 37 29 26 23 22 db EMI 120 120 120 120 120 120 db Page 7
Table 8. Specifications for 4-Way Splitter/Combiner-SC2-SC1004MD, SC2-SC1004MD-B 5-10 10-50 MINIMUM AND MAXIMUM Insertion Loss 4 Way 7.05 7.05 7.55 8.05 8.3 8.5 db Return Loss Ports 1-4 16 17 17 17 16 16 db Return Loss, S Ports 16 17 17 16 15 16 db Isolation Adjacent Ports 30 30 24 20 20 20 db EMI 110 110 110 110 110 110 db Table 9. Specifications for 2-Way Splitter/Combiner-SC2-SC1002MD, SC2-SC1002MD-B 5-10 10-50 TYPICAL Insertion Loss 2 Way 3.3 3.3 3.5 3.7 3.8 4 db Return Loss, Ports 1-2 27 34 30 26 23 19 db Return Loss, S Ports 28 29 28.5 25 22 21 db Isolation Adjacent Ports 30 32 27 25 23 25 db EMI 120 120 120 120 120 120 db Table 10. Specifications for 2-Way Splitter/Combiner-SC2-SC1002MD, SC2-SC1002MD-B 5-10 10-50 MINIMUM AND MAXIMUM Insertion Loss 2 Way 3.5 3.5 3.85 4.05 4.25 4.3 db Return Loss, Ports 1-2 16 17 17 17 16 16 db Return Loss, S Ports 16 17 17 17 16 16 db Isolation Adjacent Ports 27 27 22 20 20 20 db EMI 110 110 110 110 110 110 db Page 8
Table 11. Specifications for Directional Couplers-SC2-DC8D, SC2-DC8D-B, SC2-DC12D, SC2-DC12D-B, SC2-DC16, SC2-DC16D-B,SC2-DC20D, SC2-DC20D-B 5-10 10-50 TYPICAL Insertion Loss DC8 1.3 1.2 1.4 1.5 1.7 1.8 db DC12 1.1 1 1.1 1.15 1.2 1.25 db DC16 1.1 1 1.1 1.2 1.3 1.3 db DC20.45.4.45.55.65.8 db Coupling DC8 8 8 8.1 8.1 8 7.9 db DC12 12.1 12.1 12.2 12.15 12.15 12.15 db DC16 16 16.1 16.2 16.2 16.2 16.1 db DC20 20 20 20 20 20 20 db Return Loss IN DC8 18.4 19.1 20.7 28.8 32.2 29.2 db DC12 19 21 20 21 22 23 db DC16 19.6 20.1 19.3 20.3 21.2 21.4 db DC20 23 25 30 27 24 22 db Return Loss OUT DC8 27.2 30.2 30.9 28.5 28.5 28.7 db DC12 25 27 24 21 20 19 db DC16 25.8 27.6 24.2 23.6 24.3 24.9 db DC20 24 29 32 31 33 30 db Return Loss COUP DC8 30.9 43.4 26.2 20.3 22 23.7 db DC12 25 27 23 19 19 21 db DC16 28.1 29.7 22.8 29 22.8 25.8 db DC20 28 30 28 29 34 25 db Isolation DC8 37.7 47.2 38.8 35.1 37.7 38.3 db DC12 40 45 40 38 37 36 db DC16 41.6 44.4 48 46.2 47 45.8 db DC20 56 57 45 37 36 35 db EMI All 120 120 120 120 120 120 db Page 9
Table 12. Specifications for Directional Couplers-SC2-DC8D, SC2-DC8D-B, SC2-DC12D, SC2-DC12D-B, SC2-DC16D, SC2-DC16D-B, SC2-DC20D, SC2-DC20D-B 5-10 10-50 MINIMUM AND MAXIMUM Insertion Loss DC8 1.7 1.7 1.9 2 2.2 2.4 db DC12 1.35 1.35 1.4 1.45 1.5 1.5 db DC16 1.35 1.35 1.4 1.45 1.5 1.5 db DC20.75.75.75.9 1.05 1.25 db Coupling DC8 8±.45 8±.45 8±.45 8±.45 8±.45 8±.45 db Return Loss, All Ports DC12 12.3±.5 12.3±.5 12.3±.5 12.3±.5 12.3±.5 12.3±.5 DC16 16 ± 5 16 ± 5 16 ± 5 16 ± 5 16 ± 5 16 ± 5 db DC20 20±0.2 20±0.5 20±1.0 20±1.0 20±1.0 20±1.0 db DC8 16.5 16.5 16.5 16.5 16.5 16.5 db DC12 16 17 17 17 16 16 db DC16 17 17 17 17 16 16 db DC20 17 17 17 17 16 16 db Isolation DC8 30 30 30 30 30 30 db DC12 40 45 40 38 37 36 db DC16 30 30 30 30 30 30 db DC20 30 30 30 30 30 30 db EMI All 110 110 110 110 110 110 db db Page 10
Table 13. Specifications for Satellite Splitters/Combiners (BNC Versions) MINIMUM AND MAXIMUM Assembly 950-1450 1450-1750 1750-2150 Insertion Loss 2:1 3.5 db 3.75 db 4.0 db 4:1 7.0 db 7.5 db 8.0 db 8:1 10.5 db 11.25 db 12.0 db Flatness 2:1 ± 0.25 db ± 0.25 db ± 0.25 db 4:1 ± 0.5 db ± 0.5 db ± 0.5 db 8:1 ± 0.75 db ± 0.75 db ± 0.75 db Return Loss (S-Port) 2:1 17 db 16 db 15 db Return Loss (Output Ports) 4:1 15 db 15 db 15 db 8:1 15 db 15 db 15 db 2:1 18 db 17 db 16 db 4:1 16 db 16 db 16 db 8:1 16 db 16 db 16 db Isolation 2:1 20 db 19 db 18 db Power Passing Ports (S1 to Port 8) Distortion/Power Level 4:1 20 db 19 db 18 db 8:1 20 db 19 db 18 db 2:1 24 Vdc @ 2 Amps max. 4:1 24 Vdc @ 2 Amps max. 8:1 24 Vdc @ 2 Amps max. 2:1, 4:1, 8:1 No CTB, CSO, or XMod worse than 68 dbc Shielding Effectiveness 2:1, 4:1, 8:1 Shielding effectiveness should be better than 100 dbc Page 11
Table 14. Specifications for Satellite Splitters/Combiners (F Versions) MINIMUM AND MAXIMUM Assembly 950-1450 1450-1750 1750-2150 Insertion Loss 2:1 3.75 db 3.75 db 4.0 db 4:1 7.6 db 7.8 db 8.0 db 8:1 11.4 db 11.7 db 12.0 db Flatness 2:1 ± 0.25 db ± 0.25 db ± 0.25 db 4:1 ± 0.5 db ± 0.5 db ± 0.5 db 8:1 ± 0.75 db ± 0.75 db ± 0.75 db Return Loss (S-Port) 2:1 15 db 15 db 15 db Return Loss (Output Ports) 4:1 15 db 15 db 15 db 8:1 15 db 15 db 15 db 2:1 16 db 16 db 16 db 4:1 16 db 16 db 16 db 8:1 16 db 16 db 16 db Isolation 2:1 20 db 19 db 18 db Power Passing Ports (S1 to Port 8) Distortion/Power Level Shielding Effectiveness 4:1 20 db 19 db 18 db 8:1 20 db 19 db 18 db 2:1 24 Vdc @ 2 Amps max. 4:1 24 Vdc @ 2 Amps max. 8:1 24 Vdc @ 2 Amps max. 2:1, 4:1, 8:1 No CTB, CSO, or XMod worse than 68 dbc 2:1, 4:1, 8:1 Shielding effectiveness should be better than 100 dbc. Page 12
Table 15. Specifications for Satellite Splitters/Combiners (BNC Versions) TYPICAL VALUES Assembly 950-1450 1450-1750 1750-2150 Insertion Loss 2:1 3.2 db 3.2 db 3.2 db 4:1 6.4 db 6.6 db 6.8 db 8:1 9.6 db 10.0 db 10.4 db Flatness 2:1 ± 0.1 db ± 0.1 db ± 0.1 db 4:1 ± 0.2 db ± 0.2 db ± 0.2 db 8:1 ± 0.3 db ± 0.3 db ± 0.3 db Return Loss (S-Port) 2:1 22 db 22 db 22 db Return Loss (Output Ports) 4:1 21 db 21 db 19 db 8:1 19 db 18 db 17 db 2:1 26 db 26 db 26 db 4:1 24 db 22 db 20 db 8:1 22 db 20 db 18 db Isolation 2:1 27 db 23 db 23 db 4:1 24 db 22 db 20 db 8:1 24 db 22 db 20 db Table 16. Specifications for Satellite Splitters/Combiners (F Versions) TYPICAL VALUES Assembly 950-1450 1450-1750 1750-2150 Insertion Loss 2:1 3.3 db 3.3 db 3.4 db 4:1 6.4 db 6.6 db 6.8 db 8:1 9.6 db 10.0 db 10.4 db Flatness 2:1 ± 0.1 db ± 0.1 db ± 0.1 db 4:1 ± 0.2 db ± 0.2 db ± 0.2 db 8:1 ± 0.3 db ± 0.3 db ± 0.3 db Return Loss (S-Port) 2:1 20 db 18 db 17 db Return Loss (Output Ports) 4:1 21 db 21 db 19 db 8:1 19 db 18 db 17 db 2:1 24 db 20 db 19 db 4:1 24 db 22 db 20 db 8:1 22 db 20 db 18 db Isolation 2:1 23 db 21 db 20 db 4:1 23 db 21 db 20 db 8:1 23 db 21 db 20 db Page 13
3 INSTALLATION Warning: Never install equipment in a wet location or during a lightning storm. The Splitter/Combiner panel and chassis mount in a 19- or 23-inch (48.3 or 58.4 cm) equipment rack. Mounting screws are shipped with the panel. Extender brackets for mounting in a 23-inch equipment rack may be ordered separately. 3.1 Mount Panel or Chassis Mount the Splitter/Combiner panel or chassis as follows: 1. Determine rack location, mounting space width, and position. 2. If mounting in a 23-inch equipment rack, attach extender brackets to the panel or chassis accordingly. 3. Position the panel or chassis in its assigned rack location and secure with four mounting screws (provided), two on each side. CABLE TIE BAR TOP VIEW 19-INCH EQUIPMENT RACK MOUNTING MOUNTING SCREWS (2) MOUNTING SCREWS (2) CABLE TIE BAR TOP VIEW 23-INCH EQUIPMENT RACK MOUNTING MOUNTING SCREWS (2) EXTENDER BRACKET MOUNTING SCREWS (2) MOUNTING SCREWS (2) EXTENDER BRACKET MOUNTING SCREWS (2) 12245-A Figure 5. Panel or Chassis Equipment Rack Mounting Page 14
3.2 Cabling The cable type used for the Splitter/Combiner depends upon the application, type of service, and equipment. All cables should be 75 ohm coaxial with tinned copper shield. The recommended maximum lengths are from Network Element to Network Element. Cable the Splitter/Combiner panel or chassis as follows: 1. Obtain Network Element circuit to Splitter/ Combiner jack IN and OUT assignments from local support staff. 2. Label all IN and OUT cables to identify the Network Element associated with each Splitter/Combiner connector. It is recommended that all cables associated with a Splitter/ Combiner module be grouped or laced together for ease of future removal of the module. 3. Route the cables from the Network Element to the rear of the Splitter/Combiner panel or chassis according to the office cabling plan. It is recommended that the cabling be split between the left and right sides of the equipment rack. (See Figure 7.) 4. Measure the length of cable from the cable management bar to the designated Splitter/ Combiner connector, allowing slack for tension relief. Cut, strip, and terminate each coaxial cable with the appropriate F- or BNC-type coaxial connector. Instructions for terminating coaxial connectors are included with the connectors. 5. Consult assignment lists. Terminate each coaxial cable to the appropriate Splitter/Combiner connector. 6. Record the Network Element Splitter/Combiner jack connector per local procedure. SPLITTER/COMBINER OR DIRECTIONAL COUPLER N E IN OUT N E 1 TO 50 Circuits Cable 9100 200 Feet (61.0 meters) 50 TO 750 Circuits Cable HEC-2 200 Feet (61.0 meters) 750 TO 1 GHz Circuits Cable HEC-2 100 Feet (31.0 meters) 7926-B Figure 6. Recommended Maximum Cable Lengths Page 15
S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 6741-A Figure 7. Typical Splitter/Combiner Panel Cable Routing Page 16
4 CUSTOMER INFORMATION AND ASSISTANCE For customers wanting information on ADC products or help in using them, ADC offers the services listed below. To obtain any of these services by telephone, first dial the central ADC telephone number, then dial the extension provided below. The central number for calls originating in the U.S.A. or Canada is 1-800-366-3891. For calls originating outside the U.S.A. or Canada, dial country code 1 then dial 952-946-3000. Sales Assistance Extension 63000 Systems Integration Extension 63000 BCG Technical Assistance Center Extension 63475 E-Mail: bcg_tac@adc.com Product Return Department Extension 63748 E-Mail: repair&return@adc.com Quotation Proposals Ordering and Delivery General Product Information Complete Solutions (from Concept to Installation) Network Design and Integration Testing System Turn-Up and Testing Network Monitoring (Upstream or Downstream) Power Monitoring and Remote Surveillance Service/Maintenance Agreements Systems Operation Technical Information System/Network Configuration Product Specification and Application Training (Product-Specific) Installation and Operation Assistance Troubleshooting and Repair ADC Return Authorization number and instructions must be obtained before returning products. Product information may also be obtained using the ADC web site at www.adc.com or by writing ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, MN 55440-1101, U.S.A. Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period. This publication may be verified at any time by contacting ADC s Technical Assistance Center at 1-800-366-3891, extension 63475 (in U.S.A. or Canada) or 952-946-3475 (outside U.S.A. and Canada), or by e-mail to bcg_tac@adc.com. All Rights Reserved Printed in U.S.A. Page 17